" *****************************************************************************************************
*
*  numcols.txt
*
*   This examples shows how to use numberOfColumns
*
*
******************************************************************************************************"

|connection1  aTextDisplay connectString statement1 sqlStatement|

aTextDisplay := TextWindow  windowLabeled: 'ODBC Interface - Using numberOfColumns'
                           frame: (0 @ 0 corner: 500 @ 500).
aTextDisplay cr.



" *** Open the connection ****"
connection1 := OdbcConnection open.
connection1 hasError
    ifTrue:
    [    aTextDisplay nextPutAll: connection1 getMessage; cr
    ].



" *** Driver  Connect ***  "
connectString :=  connection1 driverConnect: '' window: aTextDisplay
        driverCompletion: (OdbcDriverCompletions at: 'DRIVERPROMPT').

connection1 hasError
    ifTrue:
    [    aTextDisplay nextPutAll: connection1 getMessage; cr
    ].

" *** allocate a new statement *** "
statement1:= connection1 newStatement.
statement1 hasError
    ifTrue:
    [    aTextDisplay nextPutAll: statement1 getMessage; cr
    ].


sqlStatement:= Prompter prompt: 'Please Enter a select SQL statement:' default: ''.

"*** prepare the statement  ***"
statement1 prepare: sqlStatement.
statement1 hasError
    ifTrue:
    [    aTextDisplay nextPutAll: statement1 getMessage; cr
    ].


"*** get the number of columns - could be done after executeDirect or Execute  ***"
aTextDisplay nextPutAll: 'NumberOfColumns: '
                        ; nextPutAll: (statement1 numberOfColumns asString); cr.
statement1 hasError
    ifTrue:
    [    aTextDisplay nextPutAll: statement1 getMessage; cr
    ].



"*** free the statement *** "
statement1 free: (OdbcConstants at: 'SQLDROP').
statement1 hasError
    ifTrue:
    [    aTextDisplay nextPutAll: statement1 getMessage; cr
    ].

" *** disconnect *** "
connection1 disconnect.
connection1 hasError
    ifTrue:
    [    aTextDisplay nextPutAll: connection1 getMessage; cr
    ].


" *** free the connection *** "

connection1 free.
connection1 hasError
    ifTrue:
    [    aTextDisplay nextPutAll: connection1 getMessage; cr
    ].


aTextDisplay cr ; nextPutAll: '*** finished executing ***'.
